Bicycle Tube Drill Chuck Aid
C
UT A LENGTH OFbicycle inner tube an inch or two long and
stretch it over the middle part of your drill chuck. The rubber
will make it much easier to spin the chuck open and closed by hand.
—BILLWEBSTER,Chillicothe, Ill.
Shopmade Counterbore
H
ERE IS AN EASILYmade counterbore for bolt heads, nuts, and
washers. With it you can avoid the problem of centering a
second bit over a previously drilled bolt hole. Make the tool from a
length of steel rod the same size as your bolt stock. Find a flat washer
that just slips on the rod, saw a slot in it, and twist the washer apart
slightly. Weld the washer to the rod about 1 in. from one end with the
lower edge of the split facing clockwise. File the pilot end of the rod
for proper clearance and sharpen the cutting edge of the washer
with a file.
—CARLMEINZINGER,Guemes Island,Wash.
PORTABLE POWER-TOOL FIXTURESSplit washerWeldRod